This one isn't new, but I thought I try the DPW auction again. The worst thing I know is to put a value on my paintings. There is several variables and reasons to raise or lower a price. It's hard to find that balance to make a painting affordable, but not to give it away.
One thing that I got against me is that since I live in Sweden I have to charge more for shipping and handling than an American painter, and most of my buyers live in the US. Just sending it cost 20$ or more depending on how much the package weighs.